Spark-plug packing



R. R. SENOUR AND L. T. WHITE. SPARK PLUG PACKING. APPLICATION FILED JAN.13, 1921 1,400,464. Patented Dec. 13, 1921.

INVENTORJ'.

A T T ORNEYJZ Cir UNITED STATES PATENT OFFICE.

ROY R. SENOUR AN D LAWRENCE '1. WHITE, 01: PASADENA, CALIFORNIA.

SPARK-PLUG PACKING.

Application filed January 18, 1921.

ll '0 all whom it may concern:

Be it known that we, ROY R. Simone and LAWRENCE T. WHITE, citizens ofthe United States, residing at Pasadena, in the county of Los Angelesand State of California, have invented new and useful Improvements inSpark-Plug Paekings, of which the following is a specification.

This invention is a packing for spark plugs used in internal combustionengines and inserted in the heads of the engine cylinders.

It is the object of the invention to provide means for preventing theaccumulation of sand, grit and dirt around the projecting end of thespark plug, the invention being particularly adaptable to the type ofengine in which the spark plugs are inserted in the cylinder heads.

The invention will be readily understood from the following description.of the accompanying drawings, in which Figure 1 is a. perspective Viewof aportion of an internal combustion egnine with the spark pluginserted in the cylinder head and having the improved packingsurrounding the same.

Fig. 2 is a detail section on the line 22 of Fig. 1.

In the drawings we have illustrated ausual internal combustion engineconstruction including cylinder head 1 having water jacket 2 receivedover the same. As is usual in a construction of this character, theouter surface of a water jacket is recessed as shown at 3 so that ausual spark plug 4 may be threaded through the cylinder head so as toextend into the cylinder. The recess as thus provided is usually offrustoconical shape. The packing employed in connection with spark plug4 is received around the same and is seated in recess 3 so as to preventthe accumulation of dirt in said recess.

The packing, preferably, consists of an annular ring 5 which may be ofmetal and packing material 6 at the under side of said ring conformingto the shape of recess 3. It will be understood that the packing and theannular ring are provided with axial openings through which the sparkplugs extend. The packing may be held to the annular ring by means ofconnecting members shown as rivets 7 extending through plate 5 andthrough the packing material.

The packing material 6 is, preferably, a

Specification of Letters Patent.

Patented Dec. 13, 1921.

Serial No. 438,185.

fibrous material such as felt which has a nap, this nap being adapted toprovide an intimate contact between the packing and the wall of therecess. The packing is, preferably, impregnated with a suitable oil soas to afford further means for preventing the passage of dirt and sandbetween the packing and the wall of recess 3.

Various changes may be made without departing from the spirit of theinvention as claimed.

What is claimed is:

l. The combination with a cylinder head having a recess and a. sparkplug extending through said cylinder head at the base of said recess, ofa packing member received over said plug and sealed in said recess.

2. The combination with a cylinder head having a. recess and a sparkplug extending through said cylinder head at the base of said recess, ofan annular packing member conforming to said recess and received oversaid plug so as to seat in the recess.

3. The combination with a cylinder head having a recess and a spark plugextending through said cylinder head at the base of said recess, of apacking member received over said plug and sealed in said recess, saidpacking member being formed of fibrous material having a nap.

4. The combination with a cylinder head having a recess and a spark plugextending through said cylinder head at the base of said recess, of apacking member received over said plug and sealed in said recess, saidpacking member being formed of fibrous material impregnated with oil.

5. A. packing member comprising an annular ring and an annular packingof fibrous material received against one face thereof.

6. A packing member comprising an annular ring and an annular packing offibrous material received against one face thereof, and means forconnecting said fibrous material and ring.

7. A packing member comprising an annular ring and an annular packing offibrous material received against one face thereof, said fibrousmaterial having a nap and being impregnated with oil.

In testimony whereof we have signed our names to this specification.

ROY R. SENOUR. LAWRENCE T. WHITE.

